40532545 has 8 divisors (see below), whose sum is σ = 49557096. Its totient is φ = 31814016.

The previous prime is 40532543. The next prime is 40532599. The reversal of 40532545 is 54523504.

It can be written as a sum of positive squares in 4 ways, for example, as 2537649 + 37994896 = 1593^2 + 6164^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40532545 - 2¹ = 40532543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40532543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76212 + ... + 76741.

It is an arithmetic number, because the mean of its divisors is an integer number (6194637).

Almost surely, 2^40532545 is an apocalyptic number.

It is an amenable number.

40532545 is a deficient number, since it is larger than the sum of its proper divisors (9024551).

40532545 is a wasteful number, since it uses less digits than its factorization.

40532545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153011.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 40532545 is about 6366.5174938894. The cubic root of 40532545 is about 343.5062351127.

The spelling of 40532545 in words is "forty million, five hundred thirty-two thousand, five hundred forty-five".